Airliner

The tail of an airliner, seen side-on through a window: a swept fin in blue with a muted red patch high on it, and on the fuselage ahead of the fin a short red patch, then plain light grey.

At 19:31.69 in the Extended Look, an airliner’s tail is seen side-on with the nose off to the right: the fin’s leading edge sweeps down from the top left of the crop to the fuselage, whose upper edge runs on as a straight line to the right-hand side. The whole picture is soft, and a pale window mullion stands along the left edge of the crop, so this is seen through glass; the top and back of the fin are behind that mullion.

The fin reads blue, greyer towards the top. High on it is a muted red patch that narrows downwards, with a small spot of brighter crimson at its forward end, just inside the leading edge. Below that spot the fin turns a lighter blue and then navy, the darkest colour on it.

The fuselage under the fin is blue as well, with a larger navy area just ahead of where the leading edge meets it. Ahead of the navy is a short red patch that slants down and forward, and ahead of the red the upper fuselage is plain light grey as far as the right-hand edge of the crop.

The window adds at most a faint cyan cast. The sky behind the tail is almost white and the grey of the fuselage stays close to neutral, so a blue as deep as that navy belongs to the aircraft, not to the glass.

Until 26 September 2026 this page said the opposite: that the glazing laid a strong blue-cyan cast over the frame, that the fin was less saturated than the sky, and that its colour could not be named. Measured again on the original frame, the sky is nearly white and the navy on the tail is far more saturated than it, so the page calls the tail blue again. It also had a red band running along the upper fuselage, where the frame shows only the short slanted patch described above.

How to recognise it

• A tall swept fin in blue, greyer towards the top
• A muted red patch high on the fin, narrowing downwards, with a small crimson spot at its forward end
• Navy low on the fin and on the fuselage just ahead of it
• A short red patch on the fuselage, slanting down and forward, with plain light grey ahead of it
• Seen soft through glazing, with a window mullion along the left edge of the crop

The frame it comes from

The frame is Extended Look at 19:31.69. It is 3840 by 2160, and the vehicle occupies 537 by 324 of it.

How this was measured

These figures come from the dataset, not from the prose above. We measure everything and claim what counts. How we work

What we still do not know

• The airline, and the aircraft type
• The top and back of the fin, which the window mullion hides
• Whether the red on the fin is a logo: at this softness it is a colour, not a shape we can name